120817253 has 2 divisors, whose sum is σ = 120817254. Its totient is φ = 120817252.

The previous prime is 120817237. The next prime is 120817273. The reversal of 120817253 is 352718021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89434849 + 31382404 = 9457^2 + 5602^2 .

It is a cyclic number.

It is not a de Polignac number, because 120817253 - 2⁴ = 120817237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120817273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60408626 + 60408627.

It is an arithmetic number, because the mean of its divisors is an integer number (60408627).

Almost surely, 2^120817253 is an apocalyptic number.

It is an amenable number.

120817253 is a deficient number, since it is larger than the sum of its proper divisors (1).

120817253 is an equidigital number, since it uses as much as digits as its factorization.

120817253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 120817253 is about 10991.6901794037. The cubic root of 120817253 is about 494.3596153798.

The spelling of 120817253 in words is "one hundred twenty million, eight hundred seventeen thousand, two hundred fifty-three".